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Microarray data and analysis toolsI don't it is a discussion we should indulge in, in this comments section - but in short, the people using it (in the link you provided) may not understand the meaning of "principal components".

Oct27

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Microarray data and analysis toolsI don't see why you would not be predisposed to using PCA but yet pre-disposed to accepting proximity clustering and self-org maps. It doesn't matter which chicken lays the egg. They are chicken eggs.

Oct27

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Microarray data and analysis tools"Principal Component Analysis" not "Principle Component Analysis". It analyses principal components. Misspelling it may demonstrate why you find it a problem, because you need to understand the principles behind the principals.